3UA series of thermal overload relay

The scope of application

3UA series thermal relay for AC 50 / 60Hz, the amount of voltage 660-1000V, rated current 0.1 ~ 630A power system for three-phase AC asynchronous motor for overload and phase protection, the setting current can be adjusted, and large The tuning current of some of the thermal elements is a crossed arrangement. It is user-friendly and has temperature compensation in the air temperature range of -25 degrees to 55 degrees. It has the test button to disconnect the normally closed contact and has the action indication, the automatic trip indication, the product conforms to the lEC60947-4 standard.